An enterprise-level customer has recently implemented a pair of bi-directionally IP replicated VNX
systems for their highly transactional CIFS file-based environment and NFS Office systems. Each
VNX has two storage pools of Flash RAID 5, SAS RAID 5, and NL-SAS RAID 6 for source file
systems and SAS. NL-SAS for destination file systems with multiple checkpoints are being taken
each day and retained for 30 days.
After a number of months, they have growing concerns that the replication performance has

degraded. In addition, the amount of free space available in the source storage pools has been
reduced to almost critical levels. They asked your advice on whether to utilize 16 unassigned NLSAS drives to extend the pools or to purchase additional SAS drives.
How would you advise the customer about the next step?

A.
Create a new pool from the NL-SAS drives and relocate all SavVols to it

B.
Add 8 x NL-SAS drives to the source and destination pools on each system

C.
Purchase additional SAS drives to increase the performance and pool sizes

D.
Add 16 x NL-SAS drives to the source pool on each system